I have a Sony Xplod 760X2 amp in my boat to run 2 Lanzar 12s. I took it out for the winter and now only have one of the 12s in the boat. I hooked the amp back up last week, the exact same as it was last summer and it said over current. It has a fuse on the positive line, as well as a fuse in the amp. The single sub is bridged and everything else is exactly the same as it was last year and it worked without a problem all last summer. Anyone know what could be causing this? Has the moisture gotten to it?